Braun, R.-P.R.-P.BraunGrosskopf, G.G.GrosskopfHeidrich, H.H.HeidrichHelmolt, C. vonC. vonHelmoltKaiser, R.R.KaiserKruger, K.K.KrugerKruger, U.U.KrugerRohde, D.D.RohdeSchmidt, F.F.SchmidtStenzel, R.R.StenzelTrommer, D.D.Trommer2022-03-032022-03-031998https://publica.fraunhofer.de/handle/publica/19390910.1109/22.664133Experiments on the optical generation and transmission of millimeter-wave radio signals are reported. The millimeter-wave signals are generated by heterodyning the optical spectral lines of a mode-locked laser (MLL) or of two or more semiconductor lasers at an optic/millimeter-wave converter (OMC). 70-, 140-, and 155-Mb/s data transmission experiments have been carried out successfully in optical single-channel and multichannel systems at radio frequencies of 12 GHz and 58-70 GHz. Bit-error-rate measurements yielded error-free transmission and no error floor was observed. A monolithically integrated tunable optical-signal source was developed and used for generating the millimeter-wave signals. This technology promises a high cost-saving potential for applications in radio-over-fiber systems.endata communicationlaser mode lockingmicrowave linksmillimetre wave generationmobile radiooptical fibre communicationsemiconductor lasersoptical microwave generationoptical microwave transmissionwireless communicationmillimeter-wave radio signalheterodyningoptical spectral linemode-locked lasersemiconductor laseroptic/millimeter-wave converterdata transmissionsingle-channel systemmultichannel systembit-error-ratemonolithically integrated tunable optical-signal sourceradio-over-fiber system70 mbit/s155 mbit/s140 mbit/s12 GHz58 to 70 GHz621journal article